A nightclub fire Sunday in Brazil killed more than 230 people. The initial investigation into the cause of the blaze focused on a band's faulty pyrotechnics. Comments from Facebook:

This sounds very similar to the nightclub fire that killed 100 people in Rhode Island in 2003.

This is why regulations are needed. People who just want to make money will not do the right thing when it comes to safety. They need to be regulated and inspected.

Milo Bendech

We just studied the Rhode Island Station nightclub fire in school last week, and I can't believe something like it happened again. Very sad.

Brian Gonzales

I am so sorry for the people of Brazil. My heart goes out to the family members and friends.

Edna Laffosse

For those of us old enough to remember, there was also the Beverly Hills Supper Club fire in Kentucky in the 1970s where 165 died. Fire exits were unclearly marked, making it difficult to see them.

LuAngelia Blankenbaker

This tragedy makes me think of post-9/11, when I was always aware of my surroundings. If I wasn't avoiding large, closed-in venues, I was assessing the environment for an exit plan, for example in casinos, theaters and clubs.

To this day, I walk into a large Las Vegas casino and think: My God, the exits are a mile away; how would we get out of here?

Everyone should take a second or two to find where the exits are.

Michael Kays

Sadly, this was avoidable. Boston's Cocoanut Grove nightclub fire killed 492 in 1942, and you think every nightclub would have prepared for fire after that.

William Matthew Watkins

That building does not look like it should have had 1,000 to 2,000 people in it. I'm sure many victims were crushed by crowds trying to get out.